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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 813 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.649 × 7 =
  2. 2.347 × 7 =
  3. 3.881 × 8 =
  4. 4.696 × 8 =
  5. 5.326 × 7 =
  6. 6.274 × 9 =
  7. 7.323 × 7 =
  8. 8.839 × 5 =
  9. 9.345 × 4 =
  10. 10.537 × 4 =
  11. 11.571 × 4 =
  12. 12.583 × 9 =
  13. 13.171 × 3 =
  14. 14.644 × 4 =
  15. 15.568 × 3 =
  16. 16.177 × 3 =
  17. 17.291 × 8 =
  18. 18.989 × 7 =
  19. 19.862 × 9 =
  20. 20.756 × 9 =
  21. 21.944 × 4 =
  22. 22.945 × 4 =
  23. 23.716 × 9 =
  24. 24.819 × 3 =
  25. 25.267 × 4 =
  26. 26.864 × 7 =
  27. 27.642 × 8 =
  28. 28.345 × 5 =
  29. 29.319 × 9 =
  30. 30.296 × 8 =
  31. 31.815 × 5 =
  32. 32.297 × 8 =
  33. 33.728 × 9 =
  34. 34.855 × 8 =
  35. 35.421 × 4 =
  36. 36.319 × 4 =
  37. 37.705 × 4 =
  38. 38.449 × 6 =
  39. 39.805 × 6 =
  40. 40.195 × 6 =

Answer key

  1. 4543
  2. 2429
  3. 7048
  4. 5568
  5. 2282
  6. 2466
  7. 2261
  8. 4195
  9. 1380
  10. 2148
  11. 2284
  12. 5247
  13. 513
  14. 2576
  15. 1704
  16. 531
  17. 2328
  18. 6923
  19. 7758
  20. 6804
  21. 3776
  22. 3780
  23. 6444
  24. 2457
  25. 1068
  26. 6048
  27. 5136
  28. 1725
  29. 2871
  30. 2368
  31. 4075
  32. 2376
  33. 6552
  34. 6840
  35. 1684
  36. 1276
  37. 2820
  38. 2694
  39. 4830
  40. 1170

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